DC and Switching Characteristics
LatticeECP/EC Family Data Sheet
Lattice Semiconductor
Typical Building Block Function Performance
Pin-to-Pin Performance (LVCMOS25 12mA Drive)
Function
-5 Timing
Units
Basic Functions
16-bit decoder
32-bit decoder
64-bit decoder
4:1 MUX
5.5
6.9
7.1
4.3
4.7
5.0
5.5
ns
ns
ns
ns
ns
ns
ns
8:1 MUX
16:1 MUX
32:1 MUX
Register-to-Register Performance1
Function
Basic Functions
-5 Timing
Units
16 bit decoder
410
283
272
613
565
526
442
363
353
196
414
317
216
178
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
32 bit decoder
64 bit decoder
4:1 MUX
8:1 MUX
16:1 MUX
32:1 MUX
8-bit adder
16-bit adder
64-bit adder
16-bit counter
32-bit counter
64-bit counter
64-bit accumulator
Embedded Memory Functions
256x36 Single Port RAM
512x18 True-Dual Port RAM
Distributed Memory Functions
16x2 Single Port RAM
64x2 Single Port RAM
128x4 Single Port RAM
32x2 Pseudo-Dual Port RAM
64x4 Pseudo-Dual Port RAM
DSP Function2
280
280
MHz
MHz
460
375
294
392
332
MHz
MHz
MHz
MHz
MHz
9x9 Pipelined Multiply/Accumulate
18x18 Pipelined Multiply/Accumulate
36x36 Pipelined Multiply
242
238
235
MHz
MHz
MHz
1. These timing numbers were generated using the ispLEVER design tool. Exact performance may vary with design and tool version.The tool
uses internal parameters that have been characterized but are not tested on every device.
2. Applies to LatticeECP devices only.
Timing v.G 0.30
3-12
LATTICE [ LATTICE SEMICONDUCTOR ]
